The word(s) "يكفل" appears in 3 verse(s) in Quran.

(1) ذَ‌ٰلِكَ مِنْ أَنبَاءِ الْغَيْبِ نُوحِيهِ إِلَيْكَ ۚ وَمَا كُنتَ لَدَيْهِمْ إِذْ يُلْقُونَ أَقْلَامَهُمْ أَيُّهُمْ يَكْفُلُ مَرْيَمَ وَمَا كُنتَ لَدَيْهِمْ إِذْ يَخْتَصِمُونَ

(سورة آل عمران, Aal-i-Imraan, Chapter #3, Verse #44)
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(2) إِذْ تَمْشِي أُخْتُكَ فَتَقُولُ هَلْ أَدُلُّكُمْ عَلَىٰ مَن يَكْفُلُهُ ۖ فَرَجَعْنَاكَ إِلَىٰ أُمِّكَ كَيْ تَقَرَّ عَيْنُهَا وَلَا تَحْزَنَ ۚ وَقَتَلْتَ نَفْسًا فَنَجَّيْنَاكَ مِنَ الْغَمِّ وَفَتَنَّاكَ فُتُونًا ۚ فَلَبِثْتَ سِنِينَ فِي أَهْلِ مَدْيَنَ ثُمَّ جِئْتَ عَلَىٰ قَدَرٍ يَا مُوسَىٰ

(سورة طه, Taa-Haa, Chapter #20, Verse #40)
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(3) ۞ وَحَرَّمْنَا عَلَيْهِ الْمَرَاضِعَ مِن قَبْلُ فَقَالَتْ هَلْ أَدُلُّكُمْ عَلَىٰ أَهْلِ بَيْتٍ يَكْفُلُونَهُ لَكُمْ وَهُمْ لَهُ نَاصِحُونَ

(سورة القصص, Al-Qasas, Chapter #28, Verse #12)
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